// ntddmmc.h

typedef struct _FEATURE_DATA_FORMATTABLE {
  FEATURE_HEADER Header;
  UCHAR          FullCertification : 1;
  UCHAR          QuickCertification : 1;
  UCHAR          SpareAreaExpansion : 1;
  UCHAR          RENoSpareAllocated : 1;
  UCHAR          Reserved1 : 4;
  UCHAR          Reserved2[3];
  UCHAR          RRandomWritable : 1;
  UCHAR          Reserved3 : 7;
  UCHAR          Reserved4[3];
} FEATURE_DATA_FORMATTABLE, *PFEATURE_DATA_FORMATTABLE;
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (ns-ntddmmc-_feature_data_formattable)

_FEATURE_DATA_FORMATTABLE structure

Description

The FEATURE_DATA_FORMATTABLE structure contains information for the Formattable feature.

Members

`Header`

Contains a FEATURE_HEADER structure with header information for this feature descriptor.

`FullCertification`

`QuickCertification`

`SpareAreaExpansion`

`RENoSpareAllocated`

`Reserved1`

`Reserved2`

`RRandomWritable`

`Reserved3`

`Reserved4`

Remarks

This structure holds data for the feature named "Formattable" by the SCSI Multimedia - 4 (MMC-4) specification. Devices that support this feature can format media into logical blocks.

When queried, devices supporting this feature must return the information indicated in FEATURE_HEADER. No other feature-specific information is required.

FEATURE_DATA_FORMATTABLE - NtDoc